ive got the formula down as angle=cos(adsbygoogle = window.adsbygoogle || []).push({}); ^{-1}[(u.v)/(||U||||v||)

with my u as 3,1,2 and v as -2,3,4 this gives me cos^{-1}[(-6i+3j+8k)/root406) where do i go from here?

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# Homework Help: Angles between vectors

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